CN1306720A - Virtual phone generic configurable interface - Google Patents

Abstract

A telephone communication system utilizing a virtual phone (18) wherein a telephone switch or similar digital switching device (12), a digital telephone (14) and an external device such as a personal computer (PC) or other processor (16) are generically interfaced. The virtual phone generic interface is configurable and comprises a set of virtual phone data structures (20), internal virtual phone application program interfaces (VPAPI) (22), external VPAPI (24), and an external transfer protocol. The generic interface converts proprietary telephone switch or external application protocols into a common format and functions as a protocol interpreter between proprietary switching system protocols and protocols of various applications.

Description

Virtual phone generic configurable interface

Invention field

The present invention relates generally to telephonic communication system, especially, relate to a kind of device, described device provides USI for the digital circuit on one of many dissimilar digital telephone exchanges.Phone with this general-purpose interface is " virtual telephony ", and it has the flexibility of most of features of any digital telephone of representative, no matter the type of switch or the number of features in digital telephone.

The universal that on different product lines, has had various forms of virtual telephonies.In some cases, used virtual telephony to represent specific digital telephone, such as Rolm Phone 400 or Meridian 2616.These phones are represented their supersets of the phone of switch separately.In other situation, used virtual telephony only to represent the necessary part or the subset of digital telephone.

Prior art

One of key character of telecommunication system is that the different interconnecting parts of system have each other the ability of communication effectively.The telecommunication system of many commercial presences has makes PBX (private branch exchange) switch that intercommunication phone interlinks also and external telephone network links.

Though current most of supplier sets up PBX around the general processor of the available operation general-purpose operating system (such as UNIX), and use general programming language (such as C or C++), but unfortunately different suppliers' switch uses proprietary communication protocol.Therefore, in fact can not integrate a supplier's switch and another supplier's application.

Therefore, become and extremely wish a kind of telecommunication system can be provided, this telecommunication system has the feature that proprietary PBX or applications protocol conversion is become general format, then, plays the effect of " protocol translator " between the agreement of proprietary switching system agreement and various application.

Many schemes that address this problem have been disclosed in the prior art.For example authorize people's such as Barnett No. the 4th, 873,718, United States Patent (USP), " feature phone integration unit " disclosed a kind of apparatus and method, is used for a supplier's application (voice mail) comprehensively to different suppliers' PBX environment.In this patent, the feature phone of the supplier by giving PBX is equipped with additional circuit and monitors telephone communication between PBX, feature phone and applications, thereby realizes interconnection.A significant disadvantages of the system that is disclosed is that it does not have ability to provide general-purpose interface between the many possible proprietary protocol of different PBX switching systems and applications.The invention that is disclosed only provides comprehensive between PBX and the voice mail, and it does not provide and makes PBX and the comprehensive possibility of various applications.In addition, the exchange about any information of calling or calling state variation occurs over just " unidirectional ": from PBX to the telephone set.

United States Patent (USP) the 5th, 440, a kind of ratio the 4th is provided for No. 616,873, the equipment that No. 718 patents improve to some extent, this equipment is used to make sends out message system (speech, fax etc.) and PBX interconnection, and described equipment provides digital transmission, and is sending out the redundant transmission that wide bandwidth and control information are provided between message system and the PBX.The equipment of the 5th, 440, No. 616 patents comprises the digital voice terminal adapter, and described adapter is the combination of the software of hardware and simulated digital feature phone, and it sends out the comprehensive fully of message system and PBX sending out message system and PBX interconnection to provide.Yet the adapter that can not be disclosed common form to proprietary PBX or applications protocol conversion, therefore can not play the effect of protocol translator between the agreement of proprietary switching system agreement and various application.

Authorize people's such as Applegate United States Patent (USP) the 5th, 255, No. 314, " exchange fitting integrated device " and disclosed a kind of device, this device uses a plurality of circuit surfaces (appearance) of one or more digital telephone circuits to collect the relevant additional designed information of calling of voice mail that is.After receiving required information, this device is delivered on the analog phone line of guiding voice mail into calling.Have, this device only provides a means of communication between pbx switch and voice mail again.The device that is disclosed does not combine the known pbx switch of any kind and the external device (ED) of any kind via general-purpose interface.

Brief summary of the invention

Advantageously, the present invention has overcome a difficult problem that is present in " protocol conversion " of the prior art.Virtual phone generic interface of the present invention comprises three different modules: virtual telephony data structure, routine interface and host interface.All three modules all can be independent of the comprehensive of particular type and work.The data structure of virtual telephony and routine interface software are accomplished flush bonding processor inside, the digital telephone exchange system interface synthesis of described flush bonding processor control private branch exchange (PBX).Comprehensive for each, the interface between switch and the virtual telephony data structure is different, but in case realizes just can being used further to many dissimilar application to it by interface.No matter comprehensive type how, the interface between virtual telephony structure and the applications is identical.

The realization of virtual telephony is provided for external interface by the transmission medium of any kind.Reside in the current state that the phone application of assisting on the PC can illustrate virtual telephony, can also call control.The method that this shows the universal external interface and a kind of diagnosis is provided.According to the configuration of system, realize to the interface of auxiliary PC with diverse ways.Can realize by serial port, isa bus, pci bus, USB, Ethernet or the configurable transmission of any other type.The agreement of use indoor design is carried out the communication between virtual telephony and the auxiliary PC.In fact, virtual telephony serves as protocol converter between private branch exchange system message and external serial interface.

Virtual telephony of the present invention provides general-purpose interface between the terminal installation of any digital telephone exchange and any number.Virtual telephony represent the current state of certain theoretical phone and have button, light, switch hook, display, ringer and standard digital phone general have other anything.The critical piece of virtual telephony is one group of structure of representing the telephone state of any given time.Can visit the virtual telephony structure by one group of virtual telephony application programming interfaces (VPAPI) funcall.Virtual telephony host interface by customization sends virtual telephony state and incident to the outside.

When receiving grouping from switch, level of abstraction is analyzed data and is called inner VPAPI function.Inner VPAPI function is responsible for upgrading the virtual telephony structure and by the virtual telephony host interface information of relevant any state variation is passed to auxiliary PC.The agreement of using indoor design is to provide communication by the host interface such as standard RS232 communication port between virtual telephony and auxiliary PC.The phone application that resides on the auxiliary PC can illustrate the current state of virtual telephony, and realizes calling control task.So in fact, the effect of virtual telephony is " protocol translator " between private branch exchange system message and the external interface.

When auxiliary PC receives incident, call outside VPAPI function to upgrade virtual telephony.Incident is delivered to level of abstraction, comprehensively incident is converted to command format according to specific virtual telephony at the level of abstraction place.Then, then order is delivered to switch.

Reading following detailed and in conjunction with the accompanying drawings, above-mentioned and other advantage of the present invention and feature will become more cheer and bright, wherein:

The accompanying drawing summary

Fig. 1 is the block diagram of telephonic communication system of the present invention;

Fig. 2 is a block diagram, is illustrated in the system of the Fig. 1 in the comprehensive realization of dissimilar phones;

Fig. 3 is a block diagram, and the virtual telephony application programming interfaces of the system of Fig. 1 and 2 further are shown;

Fig. 4 is the example implementation block diagram of the level of abstraction in the system of Fig. 1 and 2;

Fig. 5 is a block diagram, and the generalization form of the system of Fig. 1 is shown.

The detailed description of preferred embodiment

Telephonic communication system

The telephonic communication system of use shown in Figure 1 virtual telephony of the present invention, wherein, by configuration 18 of the present invention PBX or similar digital switch 12, digital telephone 14 and the external device (ED) such as personal computer (PC) or other processor 16 are linked to each other.Virtual phone generic interface 18 of the present invention comprises one group of virtual telephony structure 20, corresponding inside and outside virtual telephony application programming interfaces 22 and 24 and virtual telephony host interface 26.The hardware abstraction layer 28 of software appointment provides communication between internal virtual Telephony Application Programming Interface 22, PBX12 and telephone set 14.

Switch 12 can be PBX, KSU, by useing force that central station (such as Centrex or ISDN) is provided, it in addition need not to be digitized.Other communicator of phone of emerging network interfacings such as IP (IP), IsoEthernet, various wireless, ATM and so on is used in digital telephone 14 representatives.Can be connected to main communicator 14 to various types of additional telephone (for example, relevant phone, analog telephone, cordless telephone, conference telephone), modulator-demodulator, facsimile machine or computer with switch.

The virtual telephony structure

The data structure group 20 of " C " language data structure by for example keeping theoretical (promptly virtual) phone current state and so on is represented actual virtual telephony.When on switch 12 or additional character phone 14 incident taking place, the data in these structures may change, and come Data transmission by level of abstraction 28 and VPAPI 22.Also have, if authorized external device (ED) 16 sends the VPAPI order, then the virtual telephony structural information can change.

Virtual telephony structure 18 needs the RAM of several bytes in the embedded microcontroller address realm.The state of the digital telephone 14 that the current state of structure 20 and switch 12 are thought is complementary.Because the application program in the processor 16 may weaken the control of teaching machine 14, so virtual telephony 20 and digital telephone 14 are not the states that has coupling all the time.For example, if digital telephone and cordless telephone are connected to same circuit, and make speech be sent to cordless telephone by route, then switch thinks that speech is effectively, and digital telephone is not thought like this.

Because phone 14 resides in switch inside, so the expression of the state of phone 14 is provided from the message of telephone exchange 12 transmissions.Virtual telephony 18 is translated into this state and switch or the irrelevant form of phone, but this form can be represented any phone of wanting or communicator.Virtual telephony 18 is relevant with transmission with agreement.

Virtual telephony of the present invention system is designed to meet the comprehensive needs of realizing of dissimilar phones.In these three critical pieces (virtual telephony structure 20, VPAPI 22,24 and VPHI 26) of software systems, be not in each system implementation, all to need to use all parts.This illustrates in the general introduction of Fig. 2.

In realizing, first typical case has the situation that does not need host interface.When external communication device 34 comprehensively in system the time, is not used host protocol.By VPAPI 24, the systems soft ware in the microcontroller can directly be controlled external device (ED) 36 via comprehensive link 38.

From the configuration of Fig. 1 illustrate auxiliary PC 16 via RS232 link 40 link host interface 26 '.

In another example, use three all critical pieces.External communication device is the computer 44 that has the ISA link 46 of virtual telephony system.These host computer 44 operation TAPI application programs.When the message that receives from switch 12, level of abstraction 28 calls the VPAPI function, VPAPI function renewal virtual telephony structure 20 and the puppy parcs that become command conversion host computer system 44 to understand easily.At random, even do not need data are retained in the virtual telephony structure.System can play the effect of protocol converter simply.

The network application 50 that is linked to the virtual telephony system via TPC/IP protocol link 52 also is shown in the example of Fig. 2.

At first will describe the virtual telephony data structure 20 of the virtual telephony system 18 of Fig. 1 and 2 in detail, then describe virtual telephony application programming interfaces 22,24 and level of abstraction 28.Correspondingly, all structures of the structure 20 that constitutes virtual telephony system 18 and the explanation of defined variable are described below.

The master control structure

Following " C " language code illustrates main virtual telephony structure.Use an example of this data structure to represent the individual digit port.Typedef/* master's virtual telephony struct structure */VP_VOICE voice; / * speech state */VP_RINGER ringer; / * ringer state */VP_RINGER ringer; / * LCD display state */BYTE num_buttons; Button number */VP_BUTTON the button[VP_MAXBUTS of the actual use of/*]; / * button/lamp state */BYTE StandAlone; / * nil machine operation */BYTE SwitchType; Switch type */BYTE DigSetType that/* connected; If the teaching machine type that/* disposed is */BYTE Connections; Telephone unit */BYTE ActivePhone that/* is physically connected to; The actual telephone unit of/* is effective */BYTE TouchedPhone; The actual telephone unit */BYTE Carrier[2 of the last contact of/*]; / * 0=switch 1=teaching machine */BYTE PassThroughFlags; / * event block sign */BYTE Voicemux; / * Bearer Channel direction */VIRTUAL_PHONE; VP_VOICE voice; The speech control element that refers to virtual telephony.To in the chapters and sections that are entitled as " speech control structure ", be described in more detail.VP_RINGER ringer; The ring control element that refers to virtual telephony.To in the chapters and sections that are entitled as " ring control structure ", be described in more detail.VP_DISPLAY display; The display control element that refers to virtual telephony.To in the chapters and sections that are entitled as " display control structure ", be described in more detail.BYTE num_buttons; The virtual push button number of the actual use of virtual telephony.Though virtual telephony can be supported many buttons, some application may limit employed button number.VP_BUTTON button[VP_MAXBUTS]; The button control element that refers to virtual telephony.To be entitled as " button/lamp " control structure " chapters and sections in be described in more detail.BYTE StandAlone; Be true time, system operates and does not have the additional character phone.When being fictitious time, connect additional character phone and operation.BYTE SwitchType; Be connected to the kind of the PBX (or KSU) of system.Represent effective phone type by following definition: #define PBX_NONE 0/* does not connect PBX*/#define PBX_ATT 1/* and connects At﹠amp; T switch */#define PBX_M1 2/* connects Meridian switch */#define PBX_NORSTAR 3/* and connects Norstar switch */#define PBX_ROLM 4/* connection Rolm switch */#define PBX_ISON 5/* connection ISON switch */BYTE DigSetType; Be connected to the type of the digital telephone of system.Represent by following definition

Effective phone type: only */#define SET_UNKNOWN 1/* connection when without PBX of #define SET_NONE 0/*, UNKNOWN TYPE */#define SET_ROLM_400 10/* Rolm phone 400*/#define SET_ROLM_240 11/* Rolm phone 240*/#define SET_ROLM_120 12/* Rolm phone 120*/#define SET_ROLM_600 13/* Rolm phone 600*/#define SET_ROLM_300 14/* Rolm phone 300*/#define SET_M1-2616 30/* M1 2616*/#define SET_NOR_7310 50/* Norstar 7310*/#define SET_NOR_7208 51/* Norstar 7208*/#define SET_NOR_7100 52/* Norstar 7100*/#define SET_NOR_7310BLF 53/* Norstar 7310 BLF*/#define SET_NOR_7324 54/* Norstar 7324*/#define SET_ATT_7405 70/* At ﹠ amp; T 7405*/#define SET_ATT_7406 71/* At ﹠ amp; T 7406*/#define SET_ATT_7407 72/* At ﹠ amp; T 7407*/#define SET_ATT_7434 73/* At ﹠ amp; T 7434*/#define SET_ISON_1 90/* ISON1*/

BYTE Connections; All actual electrical to system's manufacturing

The shielding (mask) that words connect.Appoint

When can connect a plurality of phones quarter.

If in this field, be provided with by following

The position that the row definition is represented is then recognized

Unit for the join dependency connection.#define PHONE_NONE 0x00/* does not connect phone */#define PHONE_ADJUNCT 0x01/* criterion numeral word machine */#define PHONE_AUX 0x02/* should via the phone of debug port

With (app) */#define PHONE_CONF 0x04/* meeting spokesman phone */BYTE ActivePhone; Discern current which actual phone

The unit is effective.If phone is controlled

The system voice channel is then its definition

For effectively.BYTE TouchedPhone; Which the identifying operation person uses at last

Individual actual phone.Determine with this

The unit of " effectively " state of reception.

The effective value of this field and above right

" Connestions " field is decided

Adopted is identical.

BYTE Carrier[2] carrier wave of identification switch and phone

State.The first set inspection of definition

Cable elements, the second set expression shape

Attitude.The unknown Carrier State * of #define CARRIER_DEVICE_SWITCH 0/* exchange apparatus */#define CARRIER_DEVICE_ADJUNCT 1/* telephone carrier device */#define CARRIER_LEVEL_LOSS 0/* carrierfree */#define CARRIER_LEVEL_GAIN 1/* carrier wave */#define CARRIER_LEVEL_UNKNOWN 2/*/BYTE PassThroughFlags bit mask is used for notice and takes out

Resemble layer between switch and phone

Should transmit the thing of any type

Part, and should stop which kind

The incident of type.#define PASS_HOOK 0x01/* upgrades */#define PASS_DISPLAY 0x08/* display from the button * of teaching machine/#define PASS_LAMP 0x04/* from the lamp of switch from the switch hook * of teaching machine/#define PASS_BUTTON 0x02/* and upgrades switch */#define PASS_RINGER 0x10/* ring and upgrade switch */BYTE VoiceMux; Discern each available carrying letter

The direction in road.This is bit mask,

Each represents each channel.One

As one corresponding to speech letter

The road, and at least one position corresponding to

Available data channel.When this

When the position is low, point to channel attached

Add digital phone.When this position is high

2: the second data channel * of 1: the first data channel */#define VMUX_DATA2 0x04 of 1: the first data channel */#define VMUX_DATA1 0x02 of channel * to the channel * of teaching machine/#define VMUX_AUX 1/* to other device of The time, channel is pointed to other device.#define VMUX_ADJUNCT 0/*/#define VMUX_VOICE 0x01/* position 0: voice channel */#define VMUX_DATA 0x02/* position/* position/* position/

The speech control structure

Following " C " language code definition is used to represent the structure of the state of voice channel.The single instance of this structure is configured in the main virtual telephony structure.Typedefstruct/* virtual telephony speech structure */BYTE active; The invalid * of the effective 0=of/* 1=/BYTE unit; Does/* shield effective unit VOICE_? */BYTE volume; Quiet, low, the high * of/*/VP_VOICEBYTE active; When being true time, the current voice path

Effectively.When being fictitious time, the speech road

The footpath is invalid.BYTE unit; Current unit as communication sources (

In the boundary of teaching machine) #define VOICE_HANDSET 0x10/* telephone handset unit */#define VOICE_SPEAKER 0x20/* telelecture unit */#define VOICE_HEADSET 0x30/* telephone handset unit */BYTE volume; The quiet * of the residing current sound level #define VOICE_MUTE 0x01/* of the system operation/normal * of #define VOICE_NORMAL 0x02/* speech/#define VOICE_LOW 0x03/* speech hang down */#define VOICE_HIGH 0x04/high * of * speech/

The ring control structure

Following " C " language code definition is used to represent the structure of the ringing condition of virtual machine.The single instance of this structure is configured in the main virtual telephony structure.Typedefstruct/* virtual telephony ring structure */BYTE active; The invalid * of the effective 0=of/* 1=/BYTE cadence; The current tune of/* (cadence) type

Inventory */BYTE tone; / * current pitch type inventory */VP_RINGER; BYTE active:, connect virtual telephony when being true time

Ringing condition.Generally, can

Hear and to listen the ring indication.When being

Fictitious time disconnects ringing condition.BYTE cadence; Many differences that phone can be selected

The ring tune pattern of type it

One.It is when ringing condition is effective

Effectively.#define RINGER_CAD_OFF 1/* ring disconnects stable some the on/off combination */BYTE tone that connects */#define RINGER_CAD_2 3/* ring of */#define RINGER_CAD_ON 2/* ring; Many differences that phone can be selected

One of ring tone.It is shaking

It is effective when the bell state is effective.#define RINGER_TONE_OFF 1/* tone disconnection */#define RINGER_TONE_A 2/* tone A*/#define RINGER_TONE_B 3/* tone B*/#define RINGER_TONE_C 4/* tone C*/#define RINGER_TONE_D 5/* tone D*/#define RINGER_TONE_E 6/* tone E*/#define RINGER_TONE_F 7/* tone F*/#define RINGER_TONE_G 8/* tone G*/#define RINGER_TONE_H 9/* tone H*/

The display control structure

Following " C " language code definition is used to represent the structure of the LCD display of virtual telephony.The single instance of this structure is configured in the main virtual telephony structure.Typedefstruct/* virtual telephony display device structure */BYTE grid[VP_MAXROWS]/* display text */

[VDP_MAXCOLS]; The current cursor * of VP_CURSOR cursor[VPD_/*/

MAXCURSORS]; BYTE NumRows; Line number */BYTE the NumColumns of/* on this page; Columns */BYTE the NumCursors of/* on this page; The available cursor of/* is counted */BYTE IsStable; If/* display is stable

Be true */BYTE IsClear; If/* display is known then is

True */VP_DISPLAY; BYTE grid[VPD_MAXROWS] comprise the demonstration of relevant virtual telephony

[VDP_MAXCOLS]; The two-dimensional array of the feature of device.Whenever

Individual grid cell comprises ASC II lattice

The characteristic value of formula.Can define VPD_

MAXROWS and [VDP_MAXCOL

S], to support showing of various sizes

Show device.VP_CURSOR cursor [VPD_MAXCURSORS]; Show

The cursor inventory that device uses.Some

Display has single cursor, certain

Have a plurality of cursors.This structure

To all employed cursor positions

Level of abstraction control is provided.BYTE NumColumns; Be used for that current virtual telephony realizes

Columns BYTE IsStable on the display; It is stable by abstract at display

Layer during determined time cycle is

Very.It is stable only to work as the display trend

The time just information is delivered to main frame.BYTE IsClear; It when display is eliminated is

Very.

Following " C " language code definition is used to represent the structure of the cursor device of virtual telephony.Display function can use several cursors, must keep these cursors in order to produce correct demonstration.This structure is the part of basic display unit structure.Typedefstruct/* virtual telephony cursor structure */

BYTE row; The current line * of this cursor of/*/

BYTE col; This cursor of/* when prostatitis * /) VP_BUTTON; BYTE row; This cursor in the current display

Current line.BYTE col; This cursor in the current display

Work as the prostatitis.

Button/lamp control structure

The definition of following " C " language code is used to represent the structure of the button/lamp device of virtual telephony.Main virtual telephony structure uses the inventory of these projects to represent all possible button/lamp on the phone.Typedefstruct/* virtual telephony button/modulated structure */BYTE deviceMask; / * shielding illustrate following 4 which

Individual effective */BYTE pressID; / * button is pressed the ID*/BYTE releaseID of information; / * button is decontroled the ID*/BYTE lamp1ID of information; The ID*/BYTE lamp2ID of/* first lamp; The ID*/BYTE buttonState of/* second lamp; The downward 0=of/* button state: 1=

*/BYTE lamp1State makes progress; State */BYTE the lamp2State of/* first lamp; State */the VP_BUTTON of/* second lamp; BYTE deviceMask; The available components of recognition button/lamp

Shielding.In some cases, can

There is not lamp there to be button, and

In other situation, 2 lamps

Can relate to single button.Also have,

In generation, pressed and decontroled to some button

Sign indicating number, and other button is only pressed

Code.This shielding is by being provided with phase

Related definition position and make field

“pressID”、“releaseID”、

" lamp1ID " and " lamp2ID "

Come into force.#define VDP_MASKPRESS 0x01/* " pressID " is the effective * of */#define VDP_MASKRELEASE 0x02/* " releaseID "/effective * of #define VDP_MASKLAMP1 0x04/* " the lamp1ID "/effective * of #define VDP_MASKLAMP2 0x08/* " lamp2ID "/BYTE pressID effectively; When pressing the button, send to exchange

The relevant original comprehensive ID of machine.

This field is only worked as

Establish in " deviceMask " field

Ability when putting the VPB_MASKPRESS position

Effectively.Generally, all key all

Make this field effective.BYTE releaseID; When decontroling button, send to exchange

The relevant original comprehensive ID of machine.

This field is only worked as

Establish in " deviceMask " field

When putting the VPB_MASKRELEASE position

Just effective.Generally, keyboard button

Do not use and decontrol ID.BYTE lamp1ID; Send at lamp reproducting periods switch

Relevant original comprehensive ID.Should

Field is only worked as at " deviceMask "

VPB_MASKLAMP1 is set in the field

Just effective during the position.There is not relative photo

Button (such as keyboard button) will

Do not use this field.BYTE lamp2ID; Send at lamp reproducting periods switch

Relevant original comprehensive ID.Should

Field is only worked as at " deviceMask "

VPB_MASKLAMP2 is set in the field

Just effective during the position.Known AT﹠amp; T is

Use second lamp of button/lamp device

Unique comprehensive.BYTE buttonState; The current state of button.Can by

Descend or decontrol all buttons.When

During off-hook, think that switch hook is to press

, and when on-hook, be to decontrol

.#define BUTTON_PRESS 1/* button is pressed */#define BUTTON_RELEASE 2/* button and is decontroled */BYTE lamp1State; The current shape of first (mainly) lamp

Attitude.Lamp can be in any following shape

It is glittering that Attitude.#define LAMP_STATE_OFF 1/* lamp disconnects */#define LAMP_STATE_ON 2/* lamp connection */#define LAMP_STATE_FLASH 3/* lamp flicker */#define LAMP_STATE_FLUTTER 4/* lamp vibration */#define LAMP_STATE_WINK 5/* lamp, (winking) */#define LAMP_STATE_KLICKER 6/* lamp flickers, (flickering) */#define LAMP_STATE_MISC1 7/* lamp mixes, (misc) */BYTE lamp2State; State (the AT ﹠ amp of second lamp; T makes

With its unique switch).Lamp can

To be in as " lamp1State "

Any state in the field.

Button/lamp index is described

In main virtual telephony structure; Button/lamp information of using field " VP_BUTTON button[VP_MAXBUTS] " to come the storing virtual phone.Definition VP_MAXBUTS determines the maximum number of button/lamp that virtual telephony can comprise.In all configurations of virtual telephony, standard button is arranged all.Also have the additional buttons different with phone.Below shown in value these index are defined in button/lamp control structure array in the main virtual telephony.#define KEY_HOOK 0/* switch hook key */#define KEY_HOLD 1/* keeps key */#define KEY_XFER 2/* transfer key */#define KEY_RELEASE 3/* to decontrol key */#define KEY_PAD 4/* keyboard 0-9, *, main (prime) circuit * of the startup * of #*/#define KEY_NONFIXED 16/*-do not arrange button/#define KEY_PRIME 16/*/#define KEY_OTHER 17/* */KEY_HOOK switch hook. When pressing, think off-hook.When decontroling, think to hang

Machine.All comprehensively all have this key.The KEY_HOLD standard keeps key.Some comprehensively has this key.The KEY_XFER transfer key.Some comprehensively has this key.KEY_RELEASE decontrols key.Some comprehensively has this key.The startup of KEY_PAD keyboard key.The order of key is by following order.0 to 9, *,

And #.All comprehensively all have these keys.The startup ID of the key that KEY_NONFIXED is not provided with.Can custom configuration at this index place more

Senior key.The key that KEY_PRIME is associated with main line.When switch has for telephone configuration

During main line, this index should refer to that key.The key that-KEY_OTHER is additional.Configuration is flexibly.

VPAPI (virtual telephony application programming interfaces)

Can obtain visit by the one group of symmetric function that is known as VPAPI 22 and 24 to the virtual telephony structure.VPAPI 22,24 is provided at the mechanism of Data transmission between virtual telephony data structure 20 and all device (such as switch 12, phone 14 and external device (ED) 16).Only change data structure 20 by this interface, and not directly by external function 16.Can revise all elements of this data structure 20, and read by VPAPI 22,24.Whenever when level of abstraction software 28 receives variation from switch 12, digital telephone 14 or external device (ED) 16, call the VPAPI function with the parameter of specifying update request.The VPAPI function at first makes command request effective, then the virtual telephony structure is carried out suitable modification.

As shown in Figure 3, for providing level of abstraction 28a, 28b, 28c and 28d from different suppliers' different switch 12a, 12b, 12c and 12d and phone 14a, 14b, 14c, 14d.VAPI 22,24 also provides the data passes between virtual telephony data structure 20 and the various devices such as serial line unit 60, DSP 62, conference telephone 64 and other device 66.

Whenever when virtual telephony structure 20 being carried out effective status when changing, VPAPI 24 calls second function (host interface 26) of being responsible for information translation is become puppy parc, and it is sent to host computer system by host interface 16.

Level of abstraction 28 (and external device (ED) inquiry) often needs the information of relevant virtual telephony current state.VPAPI 22,24 functions of symmetry are exactly all aspects that are used for this purpose and are used for data access.In order to retrieve current state information and this information to be delivered to level of abstraction 28 and external device (ED) 16, use function with " vp_Get " beginning.In order to revise data, to use " vp_Set ", it automatically calls the outside function of transmitting that is used for " vp_Send " beginning then.Perhaps, for example, in the virtual telephony structure, light state is set, calls " vp_SetLampState " as parameter with lamp ID and state.In order to make level of abstraction 28 or external device (ED) 16 obtain light state, " vp_GetLampState " calls to symmetric function.

Level of abstraction 28 (and external device (ED) inquiry) often needs the information of relevant virtual telephony current state.The VPAPI function of symmetry can be used for this purpose.Therefore, during processing switch and telephony packets, level of abstraction 28 often calls VPAPI function 22,24, so that the current state of digital telephone 14 is kept in the virtual telephony data structure 20.Main " vp_Set " type of functionality of using.When the modeling event that takes place such as general wireless unit off-hook, application code also can be called " vp_Set ", makes system be in off hook state.Be also noted that, influence switch in order to make modeling event, it must pass through level of abstraction by for example API function of " vprolm_Dobutton " form.

Hardware abstraction layer 28 is not the part of virtual telephony, but is used to make the system unit that connects between switch 12 (and phone 14) and the virtual telephony 18.The regulation that is used to construct this piece changes with each switch type.In the example of Fig. 4, the comprehensive foundation of ISDN that isdn switch 72 and ISDN phone 74 use is shown.

Can set up the ground floor 80 (physical layer) of hardware abstraction according to international standard ITU I series and ITU G paper series.At ITU Q.920 to Q.923 having defined the second layer 82 (data link layer) in the file.At ITU Q.930 to Q.939 having defined the 3rd layer 84 (network layer) in the file.These regulations have defined the hardware abstraction piece 28 that the virtual telephony that how to be based upon above the isdn switch to be set up is supported together.

Function of initializing

Use following function to carry out initialization, and generally only when system start-up, call these functions.Vp_init () carries out general virtual telephony initialization, such as distribute data and

Initialization of variable.This merit of primary application invokes between the starting period

Can be once.Vp_init_pbx_type () carries out the initialization to the particular switch special use.When calling

During VPAPI function " vp_SetPbxType ", virtual telephony

This function is automatically called by system.Generally, it when starting only

Take place once.Vp_init_set_type () carries out the initialization to the optional network specific digit phone-specific.When calling

During VPAPI function " vp_SetPbxType ", virtual telephony

This function is automatically called by system.Generally, it when starting only

Take place once.

The configuration controlled function

Use these functions to manage system configuration information between primary application program and the virtual telephony.vp_SendPbxType(BYTE?resp)vp_GetdPbxType(BYTE*type)vp_SetPbxType(BYTE?type)

Above-mentioned three functions with current actual switch 12 types that connect to virtual telephony

20 are configured.After primary application program determined to connect which kind of switch, it was transferred

With Set (setting) function.The Set function is automatically called

vp_init_pbx_type()。

Type represents one of the variable of the following definition of switch type.

(type)

PBX_NONE does not connect switch (acquiescence)

PBX_ATT connects AT﹠amp; The T switch

PBX_M1 connects the Meridian switch

PBX_NORSTAR connects the Norstar switch

PBX_ROLM connects the Rolm switch

The resp data type that is delivered to serial port to be passed.

(response)

QUERY_RESPONSE no change, serial grouping are to result from inquiry

The state of DELTA_RESPONSE virtual telephony has changed vp_SendSetType (BYTE resp) vp_GetSetType (BYTE*type) vp_SetSetType (BYTE type)

Above-mentioned three functions with the current actual digital telephone type that connects to virtual telephony 20

Be configured.After primary application program 16 is determined to connect which kind of digital telephone,

It calls the Set function.The Set function is automatically called vp_init_set_type ().

Type represents one of the variable of the following definition of switch type.

SET_NONE does not connect digital telephone (acquiescence)

SET_UNKNOWN connects the teaching machine of UNKNOWN TYPE

SET_ROLM_400 connects Rolm RP400 machine

SET_ROLM_240 connects Rolm RP240 machine

SET_ROLM_120 connects Rolm RP120 machine

SET_ROLM_600 connects Rolm 600 family machines

SET_ROLM_300 connects Rolm 300 family machines

SET_M1_2616 connects Meridian 2616 machines

SET_NOR_7310 connects Norstar 7310 machines

SET_NOR_7208 connects Norstar 7208 machines

SET_NOR_7100 connects Norstar 7100 machines

SET_NOR_7310BLF connects Norstar 7310 BLF machines

SET_NOR_7324 connects the Norstar 7324 machine resp data type that is delivered to serial end 26 to be passed.

QUERY_RESPONSE no change, serial grouping result from inquiry

The state of DELTA_RESPONSE virtual telephony has changed vp_SendConnectionsType (BYTE resp) vp_GetConnectionsType (BYTE*type) vp_SetConnectionsType (BYTE type)

Above-mentioned three functions with the current phone list that connects practically to virtual telephony 20

Be configured.Primary application program 16 determines to visit the telephone unit of this system

Type.In case determine, then its is with representing that the shielding of current connection calls this function.The bit mask that mask uses corresponding to reaching 8 telephone units.If the position of given telephone type (shielding) type for connecting, then is connected to this phone in the system in shielding.

PHONE_NONE does not connect phone (acquiescence)

PHONE_ADJUNCT connects compatible digital telephone

PHONE_AUX connects the phone based on serial link

PHONE_CS1000 connects the simulation conference telephone resp data type that is delivered to serial end 26 to be passed.

QUERY_RESPONSE no change, serial grouping result from inquiry

The state of DELTA_RESPONSE virtual telephony changes

Speech MUX (multichannel) controlled function

When simultaneously a plurality of phones being connected to system, must keep actual which phone that uses.Virtual telephony 20 needs this information, thereby it can guide voice data into suitable phone.In case phone is " control " speech, virtual telephony 20 responsibilities stop that other unit takes dangerous action (calling such as stopping).

The key element that virtual telephony 20 is concerned about is unit current control and last contact.These values make virtual telephony seamlessly call control between the telephone unit that connects of (seamlessly) administrative institute.vp_SendActivePhone(BYTE?resp)vp_GetActivePhone(BYTE*type)vp_SetActivePhone(BYTE?type)

Above-mentioned three functions are joined with 14 pairs of virtual telephonies 20 of current effective phone

Put.If voice path is effective and it points to this phone, think that then this phone is to have

Imitate.Valid telephone also is the known phone that " control " is arranged.

The phone type ID of the current phone of having controlled that is connected of type.This phone type must

Must be in connecting the shielding inventory.

The PHONE_NONE free time, no phone has control (acquiescence)

The digital telephone of PHONE_ADJUNCT compatibility is controlled

PHONE_AUX controls based on the phone of serial link

PHONE_CS1000 simulation session phone is controlled

The resp data type that is delivered to serial port to be passed.

QUERY_RESPONSE no change, serial grouping result from inquiry

The state of DELTA_RESPONSE virtual telephony has changed vp_SendTouchedPhone (BYTE resp) vp_GetTouchedPhone (BYTE*type) vp_SetTouchedPhone (BYTE type)

Above-mentioned three functions are configured virtual telephony 20 with the phone of last contact.

As user during, think to contact this by button on next particular telephone or off-hook

Words.When end call, thinking does not have phone to be touched.Be tending towards effective phone

To be phone all the time with current contact condition.

The type call type identifier is if the phone that is connected is the last use of operator

Words.

The PHONE_NONE free time, no phone has control (acquiescence)

The digital telephone of PHONE_ADJUNCT compatibility is controlled

PHONE_AUX controls based on the phone of serial link

PHONE_CS1000 simulation session phone has been controlled the resp data type that is delivered to serial port to be passed.

QUERY_RESPONSE no change, serial grouping result from inquiry

The state of DELTA_RESPONSE virtual telephony changes

The speech controlled function

Use these functions to come all speeches for information about in the managing virtual phone 20.Speech effective status, volume and the actual cell of a relevant phone are all kept getting off.vp_SendvoiceState(BYTE?resp)vp_GetVoiceLevel(BYTE*level)vp_GetVoiceUnit(BYTE*unit)vp_GetVoiceVolume(BYTE*volume)vp_SetVoiceLevel(BYTE?level)vp_SetVoiceUnit(BYTE?unit)vp_SetVoiceVolume(BYTE?volume)

Above-mentioned seven functions are configured virtual telephony 20 with the current voice state.Appoint

When time is when switch 12 activates (activate) or do not activate voice path,

Call these functions.Some switch or phone have the different volume of activation and reach not

The voice path of (such as headset or speaker-phone) on the unit together

Ability.Level is when being true time, and system's voice path is effective.When being fictitious time, it is invalid.See that (level) vp_GetActivePhone determines which phone can control voice path.Unit on the phone that the unit operator is using.(unit)

The electrophone that VOICE_HANDSET can find on most of phones

VOICE_SPEAKER loud speaker/microphone (can be looked on some phone

To)

VOICE_HEADSET assists headset (normally in the device

Separately plug) volume of the speech that can hear by phone of volume.(volume)

The VOICE_MUTE speech is effective, but volume is quiet

The normal speech volume of VOICE_NORMAL

The VOICE_LOW volume can hear, but lower than normally

The VOICE_HIGH volume is higher than the normal quantity resp data type that is delivered to serial port to be passed.

QUERY_RESPONSE no change, serial grouping result from inquiry

The state of DELTA_RESPONSE virtual telephony changes

The ring controlled function

Use these functions to manage all information of relevant ring in virtual telephony 20.Ring effective status, tune and tone during the ring are all remained.vp_SendRingerState(BYTE?resp)vp_GetRingerLevel(BYTE*level)vp_SetRingerCadence(BYTE*Cadence)vp_GetRingerTone(BYTE*tone)vp_SetRingerLevel(BYTE?level)vp_SetRingerCadence(BYTE?cadence)vp_SetRingerTone(BYTE?tone)

Above-mentioned seven functions are configured virtual telephony 20 with current ringing condition.Appoint

When time is called these when switch 12 is switched on or switched off the ring that can hear

Function.Different switches uses different ring tune and ring tone.Virtual

Phone 20 keeps this information.Level thinks that when being true time ring is effective.On some switch, ring may shaken

Be effective on the whole duration in bell cycle.In other switch, ring

May be only just effective when hearing the ring sound that to hear.When being fictitious time, ring

Invalid.The cadence switch is sending the tune of bell signal.(tune)

RINGER_CAD_OFF does not have the ring tune

RINGER_CAD_ON standard ring tune is effective

The tone of the ring that the effective tone of other ring tune of RINGER_CAD_2 is heard.(tone)

The tone that RINGER_TONE_OFF can not hear

RINGER_TONE_A tone A

RINGER_TONE_B tone B

RINGER_TONE_C tone C

RINGER_TONE_D tone D

RINGER_TONE_E tone E

RINGER_TONE_F tone F

RINGER_TONE_G tone G

The RINGER_TONE_H tone H resp data type that is delivered to serial port to be passed.

QUERY_RESPONSE no change, serial grouping result from inquiry

The state of DELTA_RESPONSE virtual telephony changes

The lamp controlled function

Use these functions come to have in the managing virtual phone 20 to turn off the light all information of (LED or light).Generally in given system, there are many lamps.Virtual telephony is stored the state of any lamp in these lamps easily.Also can be directly delivered to host computer system to the lamp lastest imformation.In the case, virtual telephony only transmits information and does not keep information.

Under situation about lamp being stored in the virtual telephony, can use any function to read or write data.The function that has " V " in title needs the virtual telephony index of lamp.Remaining function is directly carried out work with primary ID.Expanded function " Ex " allows the primary ID information of a plurality of bytes.

When not being retained in the virtual telephony structure, can only use the function of carrying out work with primary ID to the lamp state.These functions will be directly delivered to main frame to lastest imformation simply and do not store any information in the virtual telephony structure.vp_SendLampState(BYTE?resp,BYTE?vid)vp_SendLampState(BYTE?resp,BYTE?len,BYTE*rawidlist,BYTE?state)vp_GetLampState(BYTE?vid,BYTE*state)vp_SetLampState(BYTE?vid,BYTE?state)vp_SetLampState(BYTE?rawid,BYTE?state)vp_SetLampState(BYTE?len,BYTE*rawidlist,BYTE?state)

The primary ID that rawid sends from switch.Virtual telephony is checked, with a part of checking whether (primary ID) is configured to this lamp in defined phone.If like this, then advance

Row is searched, to obtain the virtual index (vid) of correct button/lamp index.

The primary ID inventory that rawidlist sends from switch.This is in the more than byte of needs

(when checking and approving lamp, primary ID information uses.Use " len " parameter to determine in this inventory

Inventory) byte number.

Byte number among the len " rawidlist ".

The state of state lamp.

(state)

The LAMP_STATE_OFF lamp is dark

LAMP_STATE_ON light is light yellow stably

The LAMP_STATE_FLASH lamp is with the form light yellow of flicker

The LAMP_STATE_FLUTTER lamp is with the form light yellow of vibration

The LAMP_STATE_WINK lamp is with glittering form light yellow

The form light yellow of LAMP_STATE_FLICKER lamp to flicker

The LAMP_STATE_MISC1 lamp is with the form light yellow of the unknown

Vid is used for the ID of lamp in virtual telephony 20.Each button/lamp control structure has

The field that is used for lamp information.Only some button/lamp is defined as virtual telephony 20

A part.This field is the interior a kind of rope of button/modulated structure of virtual telephony

Draw.(see button/lamp index describe this chapters and sections)

The resp data type that is delivered to serial end 26 to be passed.

QUERY_RESPONSE no change, serial grouping result from inquiry

The state of DELTA_RESPONSE virtual telephony changes

The button control function

Use these functions to come all information relevant in the managing virtual phone with button and switch hook.General switch hook and the many buttons of in given system, existing.Virtual telephony is stored the state of any button in these buttons easily.Also can press button/relieving information is directly delivered to host computer system.In the case, virtual telephony only makes information pass through and does not keep information.

Switch hook is regarded as a button, and in virtual telephony, all the time it is defined as button number zero.

Under situation about button being stored in the virtual telephony, can use any function to read or write data.The function that has " V " in title needs the virtual telephony index of button.Remaining function is directly carried out work with primary ID.Expanded function " Ex " allows the primary ID information of a plurality of bytes.

When button state not being retained in the virtual telephony structure, use function only with primary ID work.These functions are directly delivered to main frame to lastest imformation simply and do not store any information in the virtual telephony structures.vp_SendButtonState(BYTE?resp,BYTE?vid)vp_SendButtonState(BYTE?resp,BYTE?len,BYTE*rawwidlist,BYTE?state)vp_GetButtonState(BYTE?vid,BYTE*state)vp_SetButtonState(BYTE?vid,BYTE?state)vp_SetButtonState(BYTE?rawid,BYTE?state)vp_SetButtonState(BYTE?len,BYTE*rawwidlist,BYTE?state)

The primary ID that rawid sends from switch.Whether virtual telephony is checked, to check

This button arrangement is become the part of defined phone.If like this, then

Search, to obtain the virtual index (vid) of correct button/lamp index.

The primary ID inventory that rawidlist sends from switch.This is in the more than byte of needs

When checking and approving button, information uses.Use " len " parameter to determine this inventory

In byte number.

Byte number among the len " rawidlist ".

The state of state button or switch hook.Can press or decontrol button.When off-hook, recognize

For switch hook is pressed, and when on-hook, decontrol.

BUTTON_PRESS presses the button

BUTTON_RELEASE has decontroled button

Vid is used for the ID of button or switch hook in virtual telephony 20.Each button/lamp control

Structure has the field that is used for button information.Only some button/lamp is defined as

The part of virtual telephony 20.This field is the button/modulated structure of virtual telephony

Interior a kind of index.(see button/lamp index describe this chapters and sections)

The resp data type that is delivered to serial port to be passed.

QUERY_RESPONSE no change, serial grouping result from inquiry

It is a button that the state of DELTA_RESPONSE virtual telephony has changed switch hook controlled function switch hook.All the time the button index of zero is fixed in switch hook.Because like this, control can be used the button API Calls for switch hook.Yet, for simplicity, for direct switch hook control provides one group of API function.vp_SendHookState(BYTE?resp)vp_SetHookState(BYTE?state)vp_GetHookState(BYTE*state)

The state of state switch hook.

HOOK_OFF off-hook (being similar to button presses)

HOOK_ON on-hook (being similar to button decontrols)

The resp data type that is delivered to serial port to be passed.

QUERY_RESPONSE no change, serial grouping result from inquiry

The state of DELTA_RESPONSE virtual telephony changes

The display controlled function

The virtual telephony support keeps the ability of demonstration flexibly.These functions provide to be similar to switch to level of abstraction and how the mode that information is put on the display have been set up the ability of demonstration.

When receiving the text variation from switch, level of abstraction calls " renewal " function these texts variations is sent to display.Addressing is directly (by row number and row number), or according to cursor position.Switch is removed single row or even whole demonstration through order commonly used.There is the API function in these tasks each.

Often, there is a more than cursor in a given display.Whenever when providing the display update of cursor type command, level of abstraction transmits the cursor index.Api command exists to keep each current cursor position.

(not have to change) given time cycle or switch and send " display is stable " when ordering, level of abstraction calls " vp_dDisplayIsStable " function when display is stable.This triggers virtual telephony displaying contents is sent to main frame.vp_SendDisplay(BYTE?resp)vp_dDisplayIsStable()vp_dClearDisplay()vp_dClearrow(BYTE?row)vp_dSetCursorPosition(BYTE?cindex,BYTE?row,BYTE?col)vp_dUpdateCharAtCursor(BYTE?cindex,BYTE?ch)vp_dUpdateTextAtCursor(BYTE?cindex,BYTE*txt,BYTE?len)vp_dUpdateCharAbsolute(BYTE?row,BYTE?col,BYTE?ch)vp_dUpdateTextAbsolute(BYTE?row,BYTE?col,BYTE*txt,BYTE?len)

Cindex waits to be used for carrying out the cursor index of this function.Keep this index dividually, described rope

(cursor draws and comprises the row and column that will show text.

Index)

Row will show the row number of text.

(OK)

The resp data type that is delivered to serial port to be passed.

QUERY_RESPONSE no change, serial grouping result from inquiry

The state of DELTA_RESPONSE virtual telephony changes

The ASC II character that ch is to be shown.

(character)

The ASC II text string that txt is to be shown.

(text)

Number of characters in the len ASC II text string to be shown.

The carrier Control function

Virtual telephony keeps the Carrier State of switch and additional character phone.Can obtain this information by following function.vp_SendCarrier(BYTE?resp,BYTE?device)vp_SetCarrier(BYTE?device,BYTE?level)vp_GetCarrier(BYTE?device,BYTE*level)

The device actual device.

(device)

The CARRIER_DEVICE_SWITCH switch

CARRIER_DEVICE_ADJUNCT additional character phone

The level carrier level.

CARRIER_LEVEL_LOSS device carrierfree

The CARRIER_LEVEL_GAIN device has carrier wave

The unknown of CARRIER_LEVEL_NKNOWN Carrier State

The resp data type that is delivered to serial port to be passed.

QUERY_RESPONSE no change, serial grouping result from inquiry

The state of DELTA_RESPONSE virtual telephony changes

Pass through controlled function

The message that can stop some type between switch and the digital telephone.By sign set allow where to write message by and stop which message.Following API provides this function.vp_SendPassThroughFlags(BYTE?resp)vp_SetPassThroughFlags(BYTE?flags)vp_GetPassThroughFlags(BYTE*flags)

The different bit masks of each expression of flags by pattern.If it is this position is set, then fair

(sign) permitted message and passed through.If be eliminated, then stop this message.

PASS_HOOK is from the switch hook of teaching machine

PASS_BUTTON presses/decontrols from the button of teaching machine

PASS_LAMP upgrades from the lamp of switch

PASS_DISPLAY upgrades from the display of switch

PASS_RINGER upgrades the resp data type that is delivered to serial port to be passed from the ring of switch.

QUERY_RESPONSE no change, serial grouping result from inquiry

The state of DELTA_RESPONSE virtual telephony changes

The Bearer Channel controlled function

Usually can be sent to additional character phone or other device to speech and data channel by route.These functions are controlled transmitting by route of these Bearer Channels.System may want to instruct virtual telephony that speech or data message are sent to unit beyond the additional telephone, such as conference telephone or the DSP that is used to handle.

Because the digital data link between switch and the phone generally provides voice channel and at least one data channel, so these functions use bit mask to discern to control which channel.vp_SendVoiceMux(BYTE?resp)vp_SetVoiceMux(BYTE?devicemask,BYTE?unit)vp_SendVoiceMux(BYTE?devicemask,BYTE*unit)

The devicemask bit mask, one of Bearer Channel that each expression is pointed to order.

(device shielding)

The VMUX_VOICE voice channel

The VMUX_DATA data channel

The VMUX_DATA1 main data channel

The VMUX_DATA2 auxiliary data channel

The device at the channel place that unit is to be pointed to

(unit)

VMUX_ADJUNCT additional character phone

The unit of other connection of VMUX_AUX (DSP, conference telephone etc.)

The resp data type that is delivered to serial port to be passed.

QUERY_RESPONSE no change, serial grouping result from inquiry

The state of DELTA_RESPONSE virtual telephony changes

The virtual telephony host interface protocol

Communication between virtual telephony 20 and external device (ED) (that is host computer system) is to finish by the indoor design custom protocol that is called as virtual telephony host interface protocol (VPHIP) 26.Whenever virtual telephony changes, and then the VPHIP grouping is passed out to main frame, to reflect this renewal to the virtual telephony structure.Make auxiliary PC 16 in all time, all keep up-to-date virtual telephony current state like this.

By send the VPHIP grouping on link, auxiliary PC also has the ability of control virtual telephony.Virtual telephony is analyzed the VPHIP grouping and is called suitable VPAPI function, and then this function can be upgraded the virtual telephony structure.

Functional and the structrual description of VPHIP is as follows:

Packet format

All groupings belong to down column format: the length description is worth 1 byte header (header) meeting note, 1 byte packet length variable, 1 byte packet and describes as follows chapters and sections variable grouped data face chapters and sections as follows

Header byte is followed specific regulation.Has header 0x01 from switch 12 initial any message.Message from additional telephone 14 has header 0x02.Message from auxiliary PC 16 has header 0x04.Informational message (such as the PBX type) has header 0x00.The inquiry and for the inquiry response sighting target head highest order and decide, the result obtains header sign indicating number 0x08,0x81 and 0x82.

System information

The using system information block is to transmit telephone state information between internal virtual phone 20 and auxiliary PC 16.All system information packets have prefix value 0x00.

Carrier State

Use these packet types to come the carrier case of identification switch or digital telephone.The byte description is worth 0 header 0,x00 1 block length, 42 carrier waves (switch) 0xB0,3 carrier levels

Carrierfree 0

Carrier wave 1

Unknown situation 2 byte descriptions are worth 0 header 0,x00 1 block length, 42 carrier waves (teaching machine) 0xB1,3 carrier levels

Carrierfree 0

Carrier wave 1

Unknown situation 2

The additional telephone type

Use the additional telephone type packet to discern the type of the digital telephone (if any) that is connected to interface board practically.The byte description is worth 0 header 0x001 block length, 42 additional telephone type 0xF13 telephony indexs

Do not have 0

Unknown 1

Rolm?RP400 10

Rolm?RP240 11

Rolm?RP120 12

Rolm?RP600 13

Rolm?RP300 14

M1?2616 30

Norstar?7310 50

Norstar?7208 51

Norstar?7100 52

Norstar?7310?BLF 53

Norstar?7324 54

AT&T?7405 70

AT&T?7406 71

AT&T?7407 72

AT&T?7434 73

The current effective phone

When simultaneously a more than phone being linked interface board, often need know which unit communicates with switch 12 effectively.So just need to set up such as the incident of speech by route transmission and button filtering.This grouping is returned the actual phone of current effective and is described.The byte description is worth 0 header 0x001 block length, 42 valid telephone type 0xF2,3 unit index

No 0x00

Additional number word machine 0x01

Auxiliary 0x02

Conference telephone 0x04

Use in the future 0x08

Jie Chu phone at last

When simultaneously a more than phone being connected to interface board, any unit of user's possible operation calls and reception is called.Know which actual cell is that the last virtual telephony 20 that makes that contacts can be sent to suitable unit to speech and control by route.The byte description is worth the phone type 0xF33 unit index that 0 header 0x001 block length 42 is contacted

No 0x00

Additional number word machine 0x01

Auxiliary 0x02

Conference telephone 0x04

Use in the future 0x08

The actual connection

Virtual telephony 20 can be supported several controls and/or monitoring arrangement simultaneously.Use this to order and transmit present configuration information.Link information is stored as bit mask, and described bit mask provides the nearly space of 8 actual device.The byte description is worth 0 header 0x001 block length, 42 actual connection type 0,xF4 3 and connects shielding

No 0x00

Additional number word machine 0x01

Auxiliary 0x02

Conference telephone 0x04

Use in the future 0x08

Message from switch

All message that start from switch 12 all have prefix value 0x01.

The speech state

Use the speech status packet that the current voice state is offered auxiliary PC 16.Actual cell and the volume used also are provided.The byte description is worth 0 header 0x011 block length, 52 speeches and enables the 0x103 unit

Electrophone 0x01

Loud speaker 0x02

Headset 0x044 volume

Quiet 0

Normal 1

Low 2

(disable) 0x11 forbidden in high 30 header 0x011 block lengths, 32 speeches

No matter speech enable command (0x10) activates voice channel and clearly location mode.Speech forbids that (0x11) do not activate speech clearly.Speech status command (0x12) is the two combination, wherein uses the position that exists in the unit shielding to determine whether speech is effective.The byte description is worth 0 header 0x011 block length, 52 speech state 0x123 unit

Electrophone 0x01

Loud speaker 0x02

Headset 0x044 volume

Quiet 0

Normal 1

Low 2

High by 3

The ringer state

Use the ringer status packet that the ringer state is offered auxiliary PC 16.Except the ringer state, also provide tune and ring tone.In some switch, when attempting to connect, the calling Founder is switched on or switched off ringer with the sound that can hear.It may be favourable making ringer be in " connection " state between the ring that can hear and make virtual telephony use " tune disconnection " state.This will provide and be similar to the feedback of the incoming call state being used LED.The byte description is worth the effective 0x203 tune of 0 header 0x011 block length, 52 ringers

Disconnect 0

Connect 1

#2 24 tones

Disconnect 1

A 2

B 3

C 4

D 5

E 6

F 7

G 8

H 9 byte descriptions are worth the invalid 0x21 of 0 header 0x011 block length 32 ringers

Lamp state (general)

Use the lamp status packet that lamp (LED) information is offered auxiliary PC 16.In grouping, transmit internal virtual telephone lamp ID (not being the primary ID of switch) and blink speed.The byte description is worth 0 header 0x011 block length, 52 lamps and upgrades the 0x303 blink speed

Disconnect 1

Connect 2

Flicker 3

Vibration 4

Glittering 5

Flicker 6

Mix 74 lamp ID

Main line 16

Other are 17 years old

Lamp state (original)

Use original lamp status packet that lamp (LED) information is offered auxiliary PC 16.In this grouping, transmit primary ID (but not internal virtual phone ID) and the blink speed that receives from switch.

Have in the situation of ID of a plurality of bytes at light fixture, place additional byte and length at the end of grouping and correspondingly change.The byte description is worth 0 header 0x011 block length 4+ primary ID byte number, 2 lamps and upgrades (original) 0x313 blink speed

Disconnect 1

Connect 2

Flicker 3

Vibration 4

Glittering 5

Flicker 6

Mix 74 lamp primary ID byte #15 [lamp primary ID byte #2]

Display state uses the display state grouping that monitor information is offered auxiliary PC.When receiving these groupings from switch, these groupings allow more new portion demonstration.The basic display unit grouping provides text and positional information (can obtain length from the block length byte).Can use other specific grouping, the blinking character on the auxiliary PC that is used to roll.The byte description is worth 0 header 0x011 block length 5+ (text length), 2 displays and upgrades the capable variable 4 row variablees 5 of 0x403 ... text " variable string "

Also can use and remove the display grouping to remove the single row of whole display or display.The byte description is worth 42 removings of 0 header 0x011 block length and shows that 0x413 is capable

All row 0

Single every trade number

Message from phone

All message that start from PBX all have prefix value 0x02.

Button state (general)

Come configuration virtual phone 20 with one group of universal button that on all switches, uses.These buttons (and the lamp that is associated, if any) have fixing identifier.Only the button that identifier is arranged is assigned to the virtual telephony function with this order.

Use the button state grouping button that starts from additional telephone is pressed/relieving information offers auxiliary PC.The byte description is worth 0 header 0x021 block length, 42 buttons and presses (general) 0x503 ID

Switch hook 0 (off-hook)

Keep 1

Switching 2

Decontrol 3

Keyboard (0-9, *, #) 4-15

Main line 16

Other 17 byte description is worth 0 header 0x021 block length, 42 buttons and presses (general) 0x513 ID

Switch hook 0 (on-hook)

Keep 1

Switching 2

Decontrol 3

Keyboard (0-9, *, #) 4-15

Main line 16

Other are 17 years old

Button state (original)

All buttons on all phones have the original id (identifier) of definition.Use this order on interface, to transmit this original id.Can use this order or universal button status command to come the transmission button state variation.

Have in the situation of ID of a plurality of bytes at button, place additional byte and length at the end of grouping and correspondingly change.

The description of Use the button state grouping press from the initial button of additional telephone/relieving information offers auxiliary PC. byte is worth byte #2 button in the 0 header 0x021 block length 3+ primary ID and presses the byte #2 button that (original) 0x523 primary ID byte #14 [primary ID byte #2] byte description is worth in the 0 header 0x021 block length 3+ primary ID and decontrol the single switch hook that (original) 0x533 primary ID byte #14 [primary ID byte #2] switch hook state virtual telephony comprises the state of the actual switch hook on the expression phone. When the switch hook state variation, send grouping.The byte description is worth the 0x54 byte description that makes progress of 0 header 0x021 block length, 32 switch hooks and is worth the downward 0x55 of, 0 header 0x021 block length, 32 switch hooks

Message from auxiliary PC (main frame)

All message that start from auxiliary PC 16 have prefix value 0x04.In many cases, but main frame 16 emulation from the order of switch or digital telephone.Can send the defined any grouping in front from main frame.Header signals to virtual telephony with regard to the order source, therefore can take suitable action.

Button control and state

Come configuration virtual phone 20 with one group of universal button that on all switches, uses.These buttons (and the lamp that is associated, if any), have fixing identifier.Only the button that identifier is arranged is assigned to the virtual telephony function with this order.

Auxiliary PC 16 uses button control and status packet to send the button state request to virtual telephony.These be grouped on the virtual telephony effect with directly press coming to the same thing of button on the additional telephone.This agreement allows to be used for supplemental button and presses/decontrol emulation.

Originate in the still auxiliary PC 16 of additional telephone no matter button changes, virtual telephony 20 keeps current button state.Whenever when button state changes, use these identical groupings that new state is sent to auxiliary PC 16.

System mode

When host computer system prepare to receive message from virtual telephony, it sent enable command.This makes that virtual telephony changes all virtual telephonies by host interface protocol and system message all sends to main frame.When main frame was under an embargo, virtual telephony is the hold mode telephone state still, and it just stops information is sent to main frame.The byte description is worth 0 header 0x041 block length, 42 system mode 0x903 level

Forbid 0

Enable 1

By sign

Host computer system is had the ability to ask to transmit or stop the message of some type between switch and digital telephone.The grouping that virtual telephony is responsible for keeping these signs and only sends appointment between the unit.

If the position in the shielding is set, packet type is passed through.If remove the position in the shielding, then stop them.The byte description is worth make progress 0x913 sign of 0 header 0x041 block length, 42 switch hooks

Switch hook 0x01 from device

Button 0x02 from device

Lamp from switch upgrades 0x04

Display 0x08 from switch

Ringer 0x10 from switch

The dialing order

Main frame can ask virtual telephony to transfer to a string given numeral.Virtual telephony is according to pressing/decontrol and essential delay for the parameter executive button of dialing order.The string of being dialled can comprise any keyboard button and comma.Keyboard button represents that they are own and the delay of appointment represented in comma.

Digital duration (byte 3) expression of order is pressed the length that key is not put with what millisecond was represented.The middle digital duration is the length between key is pressed.Suspending the duration is the length of suspending (comma) character.

When virtual telephony was finished dialing, it sent it back main frame to 3 byte versions of this grouping, wherein has only header, length and command byte.The byte description is worth the 4 sandwich digit durations 5 of digital #2 dialing order 0x933 numeral duration that 0 header 0x041 block length 6+ dials in the string and suspends durations 6 dial string

The Bearer Channel direction

Level of abstraction or host computer system have the ability speech multichannel (voice mux) is guided into their desired devices.This device generally is additional character phone or auxiliary unit.Virtual telephony keeps speech multichannel direction.Except speech, can control many other channels.Use this to order the multichannel direction state that transmits all Bearer Channels.

If the position in the shielding is set, then multichannel is guided into auxiliary unit.If be eliminated, then channel is guided into the additional character phone.The byte description is worth the shielding of 0 header 0x041 block length, 42 speech multichannel 0x933 devices

Speech 0x01

Data 0x02

Data 1 0x02

Data 2 0x04

Inquiry

Auxiliary PC 16 can be at any time to virtual telephony 20 inquiry current states.This is to be undertaken by the transmission and the order of the reception order symmetry of each Status Type.Except the highest order of header byte, these orders are identical with the reception order.When this position when being high, virtual telephony is interpreted as an inquiry to this and automatically responds with current state.

For example, if auxiliary PC 16 is asking the ringer state, then it sends grouping [81 04 20##] (wherein ## is an extraneous data).Virtual telephony 20 will respond by [01 04 20##] or [01 04 21] (wherein ## is valid data) being sent it back auxiliary PC.

Effectively inquiry command identifier (ID) is:

0x54 inquiry switch hook state

The 0x91 inquiry is by the sign state

0xB0 inquired switch Carrier State

0xB1 inquiry digital telephone Carrier State

0x10 inquiry speech state

0x20 inquiry ringer state

0x30 inquiry lamp state

0x40 inquires display state

0x50 inquires button state

0xF0 inquired switch type

0xF1 inquiry additional telephone type

0xF2 inquires current valid telephone

The phone of the last contact of 0xF3 inquiry

Combine with above description, the table I is listed the data structure of virtual telephony 20, and the table II is listed various serial orders.

Table I-virtual telephony structure typedef struct/* virtual telephony speech structure */{ BYTE active; The invalid * of the effective 0=of/* 1=/BYTE unit; Does/* shield effective unit UPV_? */BYTE volume; Quiet, low, the high * of/* speech/{ VP_VOICE; Typedef struct/* virtual telephony ringer structure */BYTE active; The invalid * of the effective 0=of/* 1=/BYTE cadence; The current tune type of/* inventory */BYTE tone; / * current pitch type inventory */{ VP_RINGER; Typedef struct/* virtual telephony display device structure */BYTE row: the current line */BYTE col of this cursor of/*; This cursor of/* when prostatitis */VP_CURSOR; Typedef struct/* virtual telephony display device structure */{ VP_CURSOR; Typedef struct/* virtual telephony display device structure */BYTE/* display text */grid[VPD_MAXROWS] [VPD_MAXCOLS]; The current cursor * of BYTE cursor/*/{ VPD_MAXROWS}; BYTE NumRows; Line number */BYTE the NumColumns of/* on this page; Columns */BYTE the NumCursors of/* on this page; The available cursor of/* is counted */BYTE IsStable; / * is true */BYTE IsClear when display is stablized; / * is true */{ VP_DISPLAY when the current removing of display; Typedef struct/* virtual telephony button/modulated structure */BYTE deviceMask; Any 4 effective */BYTE pressID below/* shielding illustrates; / * button is pressed the ID*/BYTE releaseID of information; / * button is decontroled the ID*/BYTE lamp1ID of information; The ID*/BYTE lamp2ID of/* first lamp information; The ID*/BYTE buttonState of/* second lamp information; / * button state; The downward 0=of the 1=*/BYTE lamp1State that makes progress; State */BYTE the lamp2State of/* first lamp; The state */{ VP_BUTTON of/* second lamp; Typedef struct/* master's virtual telephony structure */{ VP VOICE vioce; / * speech state */VP_RINGER ringer; / * ringer state */VP_DISPLAY display; / * LCD display state */BYTE Hook Switch; / * switch hook state */BYTE num_buttons; / * reality the button number */VP_BUTTON button/* button/lamp state * that uses/

[VP_MAXBUTS]; BYTE StandAlone; / * does not have the operation */BYTE SwitchType of teaching machine; The type * of the switch that/* connected/BYTE DigSetType; The type of the teaching machine that/* disposed, as

Words */BYTE Connections that fruit has; Which telephone unit of/* is the */BYTE ActivePhone of actual connection; Which actual telephone unit of/* is effective */BYTE TouchedPhone; Which actual telephone unit */BYTE Carrier (2)/* contacts; / * 0=switch 1=teaching machine */BYTE/* event block sign */PassThroughFlags; BYTE VoiceMux; / * Bearer Channel direction */{ VIRTUAL_PHONE;

Table II-concise and to the point Host Command inventory is described header length command data 1 data 2 data 3 speeches and is enabled P 05 10 unit speeches and forbid enabling P 05 20 tune tone ringers by P 03 11 volume speech state P 05 12 unit volume ringers to forbid that P 03 21 lamps (general) P 05 30 state ID lamp (original) P 04+ count 31 state primary ID #1 [original

ID#2] display P 05+ text length 40 ranks texts ... display is removed P 03 41 buttons and is pressed (general) SHX 04 50 ID buttons and decontrol (general) SHX 04 51 ID buttons and press (original) SHX 03+ to count 52 primary ID #1[original

ID#2 ... ] button decontrols (original) SHX 03+ to count 53 primary ID #1[original

ID#2] the switch hook downward SHX 03 55 system mode HX of SHX 03 54 switch hooks 04 90 level that make progress see that by sign HX 04 91 sign dialing order HX 09=numerals 92 message that the actual connection in the phone X 04 F3 unit X 04 F4 shielding P-PBX that annotates 1 Bearer Channel control HX, 04 93 device shielding Carrier State-PBX X 04 B0 level Carrier State-SET X 04 B1 level PBX type X 04 F0 type SET type X 04 F1 type valid telephone X 04 F2 unit contacts produces annotates 1: the message data 1 that parameter S-SET produces that is used for the dialing order: the message data 2 that numeral duration (high byte) H-Host produces: the message data 3 of numeral duration (low byte) X-Firmware system generation: sandwich digit duration (high byte)

Data 4: sandwich digit duration (low byte)

Data 5: suspend the duration (high byte)

Data 6: suspend the duration (low byte)

Data 7:? dial string

System of the present invention can Fig. 5 the form of system unify, it comprises medium control agent (proxy) 100, communication switchboard 102 and communicator or terminal 104.Switch 12 is similar to the PBX 12 among Fig. 1, and terminal 104 is similar to the phone 14 among Fig. 1, and medium control agent 100 is Unified Form of the virtual telephony 18 of Fig. 1.Medium control agent (MCP) 100 as the gateway between some communication switch system (that is, switch 12) and some terminal (that is, terminal 104).The main purpose of MCP is any gap of communication protocol between bridge service apparatus (switch) 102 and the user's (terminal 104).

Communicator 104 is any devices that send and/or receive the medium that comprise sound and image, and device 104 can be the emulation of the physical end in physical end or the computer hardware (comprising the application program in the system of residing in).

In the minimal configuration of Fig. 5, MCP 100 resides between switch 102 and the terminal 104.MCP 100 transmits Bearer Channel data (speech, video etc.) on channel 110 and 112.Information on the handling control channel 114 and 116 also converts terminal 104 intelligible agreements to.According to the type of the terminal that is connected, this can be the proprietary protocol that is exclusively used in terminal, maybe can be the standard agreement of the MCP that designs for communicating by letter with a large amount of devices.Can be seen as control channel 116 is application programming interfaces (API).

Its information of receiving from the control channel 114 of switch 102 of MCP 100 translation, and keep the state of switch 102 defined terminals 104.With regard to switch 102, MCP 100 is terminals 104.MCP 100 also sends to switch 102 to data on control channel 114.It carries out according to the agreement of switch 102 this locality.Switch 102 translations come the message of self terminal 104 from any message of MCP 100 as those.

Can be configured to realize many different functions to MCP 100.Main points are that it both has the ability to communicate with the local terminal of switch, but also can communicate with the terminal or the communicator of unlimited selection.Fixing (being proprietary sometimes) control protocol of the original connection of using between switch and local terminal is converted to the necessary any communication means of any given terminal of support.

The terminal type that can link MCP 100 is so flexible, thus data and control channel resident medium type also be hard-core.As the connection on the computer bus, direct proprietary connection is possible.Also can on new or existing network, transmit data and control channel by route.The device of support of wireless communication.In fact, set up this system, make it to can be configured to operate any terminal that requires transmission.MCP100 manages the data of any such configuration and prepares.

Therefore can understand that the present invention realizes the purpose that it is scheduled to.A kind of telephonic communication system is provided, and it becomes general form to proprietary PBX or applications protocol conversion, and therefore plays the special use of translater between proprietary switching system agreement and various application protocol.Virtual phone generic interface of the present invention is configurable, and can be independent of the comprehensive of particular type and work, and the general-purpose interface between the terminal installation of any digital telephone exchange and any number is provided.Variation in the virtual telephony interface is sent to ppu, and then, ppu can be ordered the variation in the virtual telephony interface.

Described embodiments of the invention in detail, but the purpose only in order to illustrate is not limited.

Claims (40)

1. in a kind of communication system that comprises at least one telephone exchange and at least one communicator: a kind of virtual phone generic configurable interface plays the effect of protocol translator of the agreement of described telephone exchange, thereby enables the communication between described switch and the described communicator.

2. the system as claimed in claim 1, it is characterized in that, described virtual phone generic configurable interface comprises the device that is used to provide one group of virtual telephony data structure, and described virtual telephony data structure group is used to be illustrated in the telephone state known to any given time telephone exchange.

3. the system as claimed in claim 1, it is characterized in that, described virtual phone generic configurable interface comprises the device that is used to provide the virtual telephony application programming interfaces, and described virtual telephony application programming interfaces are used for providing data communication between described telephone exchange and described communicator.

4. the system as claimed in claim 1 is characterized in that, described virtual phone generic configurable interface comprises the device that is used to provide communication protocol, and the phone control information that described communication protocol is used between described telephone exchange and the described communicator is transmitted.

5. the system as claimed in claim 1 is characterized in that, described virtual phone generic configurable interface comprises:

(a) be used to provide the device of one group of virtual telephony data structure, described virtual telephony data structure group is used to be illustrated in the telephone state known to any given moment telephone exchange; And

(b) be used to provide the device of routine interface, described routine interface is used to visit described data structure.

6. system as claimed in claim 5, it is characterized in that, be used to provide the described device of the visit routine interface that described data structure is used to comprise the virtual telephony application programming interfaces, described virtual telephony application programming interfaces are used for providing data communication between described virtual telephony data structure group and described switch and described communicator.

7. comprise at least one telephone exchange, at least one phone and be used for handling telephonic communication system a kind of about the computer of the application of the operation of described telephone exchange and described phone: a kind of virtual phone generic configurable interface between the agreement of the agreement of described telephone exchange and described application as protocol translator.

8. system as claimed in claim 7 is characterized in that, described virtual phone generic interface comprises:

(a) be used to provide the device of one group of virtual telephony data structure, described virtual telephony data structure group is used to be illustrated in the telephone state known to any given time telephone exchange;

(b) be used to provide the device of routine interface, described routine interface is used to visit described data structure; And

(c) be used to provide the device of agreement, described agreement is used to set up the communication between described computer and the described data structure.

9. system as claimed in claim 8 is characterized in that, is used to provide the described device of the visit routine interface that described data structure is used to comprise:

(a) internal virtual Telephony Application Programming Interface is used for providing data communication between described virtual telephony data structure group and described switch and described communicator; And

(b) outside virtual telephony application programming interfaces are used for providing data communication between described virtual telephony data structure group and described computer.

10. system as claimed in claim 9 is characterized in that, also comprises communication protocol, and being used for provides communication between described outside virtual telephony application programming interfaces and described computer.

11. in a kind of telephonic communication system that comprises at least one telephone exchange, at least one phone and applications device, a kind of virtual telephony interface comprises:

(a) be used to provide the device of one group of virtual telephony data structure, described virtual telephony data structure group is used to be illustrated in the telephone state known to any given time telephone exchange;

(b) be used to provide the device of one group of symmetric function, described function be used between described virtual telephony data structure and described telephone exchange and described phone and described virtual telephony data structure and with communication medium that described applications device is associated between Data transmission, described function group is unique device of the described virtual telephony data structure of change;

(c) be used between described symmetric function group and described telephone exchange and described phone, providing communicating devices; And

(d) described symmetric function group and with described communication medium that described applications device is associated between communicating devices is provided.

12. virtual telephony interface as claimed in claim 11 is characterized in that, described applications device comprises computer.

13. virtual telephony interface as claimed in claim 7 is characterized in that, is used to provide the described device of symmetric function group to comprise:

(a) internal virtual Telephony Application Programming Interface is used for providing data communication between described virtual telephony data structure group and described telephone exchange and described phone; And

(b) outside virtual telephony application programming interfaces are used for providing data communication between described virtual telephony data structure group and described applications device.

14. virtual telephony interface as claimed in claim 13 is characterized in that, also comprises communication medium, being used for provides communication between described outside virtual telephony application programming interfaces and described applications device.

15. one kind is used for providing method for communicating in the system that comprises at least one telephone exchange and at least one communicator, described method comprises the following steps:

(a) provide virtual phone generic configurable interface, make it protocol translator as the agreement of described telephone exchange; And

(b) utilize described virtual phone generic configurable interface to enable communication between described telephone exchange and the described communicator.

16. method as claimed in claim 15, it is characterized in that, provide the step of virtual phone generic configurable interface to comprise virtual telephony data structure group is provided, described virtual telephony data structure group is used to be illustrated in the telephone state known to any given time telephone exchange.

17. method as claimed in claim 15, it is characterized in that, provide the step of virtual phone generic configurable interface to comprise the virtual telephony application programming interfaces are provided, described virtual telephony application programming interfaces are used for providing data communication between described telephone exchange and described communicator.

18. method as claimed in claim 15 is characterized in that, provides the step of virtual phone generic configurable interface to comprise:

(a) provide one group of virtual telephony data structure, described virtual telephony data structure group is used to be illustrated in the telephone state known to any given time telephone exchange; And

(b) be provided for visiting the routine interface of described structure.

19. method as claimed in claim 18, it is characterized in that, provide the step of routine interface of the described data structure of visit to comprise the virtual telephony application programming interfaces are provided, described virtual telephony application programming interfaces are used for providing data communication between described virtual telephony data structure group and described switch and described communicator.

20. the method for the feature of a digital telephone that is used to represent one or more any kinds, this method has nothing to do in the type of the telephone exchange that is associated with described or phone in operation, also with described one or more phones in number of features irrelevant, described method comprises the following steps:

(a) provide one group of virtual telephony data structure, described virtual telephony data structure is represented the state of the described one or more phones of any given time;

(b) provide external device (ED), described external device (ED) produces the application about the operation of described telephone exchange and described one or more phones; And

(c) change described data structure according to the order of sending by described external device (ED).

21. method as claimed in claim 20 is characterized in that, also comprises in response to the incident in described telephone exchange and the described one or more phone changing described data structure.

22. method as claimed in claim 21, it is characterized in that, also comprise the function that one group of symmetry is provided, described symmetric function group is sent funcall, and described funcall is used for from described external device (ED) and from described telephone exchange and the described data structure of described one or more telephone interview.

23. method as claimed in claim 20 is characterized in that, the step that the order of sending according to described external device (ED) changes described data structure comprises:

(a) reception is from the order of described external device (ED);

(b) in response to the described command calls one symmetrical function that funcall is provided;

(c) comprehensively funcall is converted to command format according to specific virtual telephony, to change one or more described data structures; And

(d) described command format is delivered to described telephone exchange.

24. method as claimed in claim 21 is characterized in that, the step that changes described data structure in response to the incident in the described telephone exchange comprises:

(a) reception is from a grouping of described telephone exchange;

(b) utilize data call one symmetrical function in the described grouping;

(c) funcall that utilizes described symmetric function to send upgrades one or more described data structures; And

(d) relevant described updated information is delivered to described external device (ED).

25. the method for the feature of a digital telephone that is used to represent one or more any kinds, described method has nothing to do in the type of the telephone exchange that is associated with described one or more phones in operation, also with described one or more phones in number of features irrelevant, described method comprises the following steps:

(a) provide virtual telephony data structure group, described virtual telephony data structure group provides the state of the digital telephone known to any given time telephone exchange.

(b) provide ppu, be used to produce application about the operation of described telephone exchange and described one or more phones;

(c) change described data structure in response to the incident in described telephone exchange and the described one or more phone; And

(d) order of the relevant described application of sending in response to described processor changes described data structure.

26. method as claimed in claim 25 is characterized in that, also comprises:

(a) in response to the incident in described telephone exchange and the described one or more phones information that relevant described data structure changes is delivered to described ppu; And

(b) order of sending in response to described processor is delivered to described telephone exchange to the information of the variation of relevant described data structure.

27. method as claimed in claim 25, it is characterized in that, also comprise one group of symmetric function is provided, described symmetric function group is sent funcall, and described funcall is used for from described ppu with from described telephone exchange and the described data structure of described one or more telephone interview.

28. method as claimed in claim 27 is characterized in that, can only change described data structure by described symmetric function group.

29. in the communication system that comprises at least one communication switchboard and at least one communicator: a kind of medium control agent that between described communication switchboard and described communicator, is used as gateway, with any space of communication protocol between described communication switchboard of bridge joint and the described communicator, thereby enable communication between described communication switchboard and the described communicator.

30. system as claimed in claim 29, it is characterized in that described medium control agent comprises the device that is used for the fixedly control protocol of the original connection between described communication switchboard and the described communicator is converted to the communication means of supporting any given communicator.

31. system as claimed in claim 29, it is characterized in that, the first Data-carrying channel and first control channel all are connected to described communication switchboard and described medium control agent, and the second Data-carrying channel and second control channel all are connected to described medium control agent and described communicator.

32. system as claimed in claim 31 is characterized in that, described medium control agent comprises be used to device that data are passed through on the described first and second Data-carrying channel.

33. system as claimed in claim 31 is characterized in that, described medium control agent comprises the information that is used to handle on described first and second control channels device with the agreement that makes it to convert to described communicator and understand.

34. one kind is used for providing method for communicating in the system that comprises at least one communication switchboard and at least one communicator, described method comprises the following steps:

(a) be provided at the medium control agent that is used as gateway between described communication switchboard and the described communicator, with any space of communication protocol between described communication switchboard of bridge joint and the described communicator; And

(b) utilize described medium control agent to enable communication between described communication switchboard and the described communicator.

35. method as claimed in claim 34, it is characterized in that, provide the described step of medium control agent to comprise the fixedly control protocol of the original connection between described communication switchboard and the described communicator is combined with the communication means of supporting any given communicator.

36. method as claimed in claim 34 is characterized in that, provides the described step of medium control agent to comprise the Bearer Channel data are passed through between described communication switchboard and described communicator.

37. method as claimed in claim 34 is characterized in that, provide the described step of medium control agent comprise processing from the control information of described communication switchboard to convert the agreement that described communicator is understood to.

38. method as claimed in claim 34 is characterized in that, provides the described step of medium control agent to comprise the control information that translation receives from described communication switchboard, and keeps the state by the defined communicator of communication switchboard.

39. method as claimed in claim 34, it is characterized in that, provide the described step of medium control agent to comprise native protocol with described communication switchboard, on the control channel between described medium control agent and the described communication switchboard, data are sent to described communication switchboard, thereby described communication switchboard translation resembles the message of translation from described communicator from the message of described medium control agent.

40. one kind with data structure calculation of coding machine readable storage devices, be used to provide virtual phone generic configurable interface, described virtual phone generic configurable interface is as the protocol translator of the agreement of telephone exchange, thereby enable the communication between described switch and the communicator, described data structure has clauses and subclauses, and wherein each clauses and subclauses comprises the expression of the communicator state known to any given time telephone exchange.

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